System Error - Fujitsu Airstage V-II Service Manual

Trouble shooting 94
Error Contents :

System Error

Details :
Condition of occurrence :
1. Registration started within 4 minutes after power ON
2. Indoor unit refrigerant system registered at controller connect ed to converter reached 3 or more ([26] error generated at
converter)
3. Only the slave unit is registered. (Main unit is not registered.)
4. Indoor unit which is not existing was registered.
5. Outdoor unit is not set in the same refrigerant circuit as the indoor unit.
Release condition : Registered contents have been changed by SELECT key, DAY key, Timer Mode key (DELETE key).
Cause 1 : Conditions check
Check if 4 minutes or more after starting
Clear when [26] error generated at converter.
Check if refrigerant systems do not become 3 or more by
this indoor unit registration.
OK
Cause 2 : Setting failure
Recheck the registered contents.(Register the main unit.)
Check Indoor unit DIP-SW, R-SW
Check outdoor unit R-SW.
OK
Cause 3 : Connection failure
Check transmission cable
Check if Indoor or Outdoor unit power line is disconnected.
Check if the convertor power line is disconnected.
Check connection between controller and the convertor.
OK
Cause 4 : Check outside cause (Voltage drop or noise, etc.)
Instant drop ----- Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supplycircuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line (Neon bulb or electric equipment that may cause
OK
Cause 5 : Remote Controller is defective.
Replace Group Remote Controller.
Symptom :
Error Code display [ 1 5 ]
OPERATION LED is flashing.
04-90
harmonic wave).